HP 39g+ User Manual page 82

Define the
expression
Specify plot
settings
Plot the
sequence
6-2
2. Define the Fibonacci sequence, in which each term
(after the first two) is the sum of the preceding two
terms:
U = 1 U =
,
1 2
In the Symbolic view of the Sequence aplet, highlight
1
the U (1) field and begin defining your sequence.
1 1
Note: You can use the
, ,
and menu keys to assist in the entry of equations.
3. In Plot Setup, first set the SEQPLOT option to
Stairstep. Reset the default plot settings by
clearing the Plot Setup view.
-
SETUP PLOT
CLEAR
8
8
4. Plot the Fibonacci
sequence.
5. In Plot Setup, set the SEQPLOT option to Cobweb.
-
SETUP PLOT
1 U = U + U
,
n n 1 –
, ,
n 3
for .
n 2 –
Sequence aplet